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Mercury oxycyanide and mercuric cyanide poisoning: two cases
M L Benaissa1, P Hantson, C Bismuth
1Reanimation Toxicologique, Hopital Fernand Widal, Paris, France.
Background:
Although cyanide poisoning can be serious or fatal, it is typically described as mild when the cyanide is ingested in the form of either mercuric cyanide or mercury oxycyanide.
Methods:
We studied two patients with acute cyanide poisoning following ingestion of one of these two agents in each case.
Results:
Both patients demonstrated features of life-threatening cyanide poisoning, including hemodynamic instability, severe lactic acidosis, and high blood cyanide concentration. One of the patients died, while the second demonstrated signs of mercury intoxication (acute renal failure and severe gastrointestinal symptoms), in addition to cyanide intoxication.
Conclusion:
Ingestion of either mercuric cyanide or mercury oxycyanide can result in life-threatening cyanide intoxication.